/ɪk'stremətɪ; ɪk`strɛmətɪ/
n
1 (a) [C] (fml 文) furthest point, end or limit of sth 极端; 末端; 极限; 尽头
*the extremities of the world 世界的尽头.
(b) extremities [pl] furthest parts of the human body, eg hands and feet （人的）肢体（如手和足）
*Cold affects the extremities first. 手和脚最先感到寒冷.
2 [sing] (fml 文) extreme degree (esp of misery, suffering, etc); great misfortune or distress 极度（尤指悲惨、痛苦等）; 极大的不幸或危难
*reach an extremity of despair 绝望已极
* How can we help them in their extremity? 我们怎样帮助他们摆脱困境呢?
3 [C usu pl 通常作复数] (fml 文) exceptionally cruel or violent behaviour 极端残暴的行为
*Both armies were guilty of extremities. 两军都犯有残暴的罪行.

npluralextremities
[C usually plural]
one of the parts of your body that is furthest away from the centre, for example your fingers and toes
[U]
the degree to which something goes beyond what is usually thought to be acceptable
　The committee was uncomfortable about the extremity of the proposal.
[C]
the part that is furthest away from the centre of something
eastern/southern etc extremity of sth
　an island at the southern extremity of New Zealand